Male meiotic mutants with phenotypic marker traits in Uraria picta (Jacq.) DC.

Bhattacharya, Arnab; Datta, Animesh

doi:10.1007/s13237-012-0062-4

Cited by 4 publications

(1 citation statement)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A better alternative term for desynapsis is proposed as synaptic mutant by Riley and Law (1965). Male meiotic mutant like desynapsis is reported both from natural (vide Koduru and Rao 1981, Poddar et al 1998, Armstrong and Jones 2003, Jackson et al 2002, Sosnokhina et al 2002, Maity and Datta 2009, Mandal and Datta 2011 and mutagen induced (Bozzini and Martini 1971, Gottschalk and Baquar 1971, Palmer 1974, Gottschalk and Kaul 1980, Datta and Biswas 1985, Bhattacharya and Datta 2012, Gulfishan et al 2013, Naseem and Kumar 2013, Bhat and Wani 2015 population of different plant species. Apart from cytogenetical significance, desynaptic mutants can potentially induce aneuploids (Soost 1951, Burnham 1962, Jackson et al 2002.…”

mentioning

confidence: 99%

Copper Oxide Nanoparticles Induced Fertile Desynaptic Mutant Line in <i>Coriandrum sativum</i> L. (Apiaceae)

et al. 2018

View full text Add to dashboard Cite

A desynaptic plant (2n=22) is screened from copper oxide nanoparticles (CuO-NPs) treated (dry seeds exposed to 0.25 µg mL 1 , 4 h) M 1 population (one from 47 plants) of Coriandrum sativum L. (moisture content: 13.60%). Selfed seeds of the marked plant also yield a desynaptic plant (one plant out of five raised; 50 seeds sown) at M 2 . The mutant plants show enhanced univalent frequency (diplotene-diakinesis: 0-14/cell, metaphase I (MI): 0-20/cell) and reduced chiasma/cell (diplotene-diakinesis: 12.58 0.95 to 12.20 1.34; MI: 12.11 1.13 to 11.64 0.97) than dry and bulk controls (diplotene-diakinesis: univalent frequency 0-4/cell, chiasma/cell 14.77 1.20 to 13.00 0.92; MI 0-4/cell, chiasma/cell 13.85 0.93 to 12.91 0.49). The marked plants document unequal chromosome segregation at anaphase I (AI) (10/12, 9/13, 8/14 and 6/16) and anaphase II (AII) (unequal groups) compared to cytologically balanced separation in controls. Pollen grains fertility is also reduced in the mutant plants (83.36 to 77.76%) than controls (96.91 to 89.88%). Both the M 1 and M 2 desynaptic plants yield seeds. Results suggest that CuO-NPs can alter meiotic synchrony of genes controlling retention of chiasma formation and maintenance, leading to the development of desynaptic mutant line.

show abstract